rcmmnds
Visual Basic for MS-DOS (Prentice Hall Series in Innovative Technology)

Visual Basic for MS-DOS (Prentice Hall Series in Innovative Technology)

also mentioned:

Advanced TRS-80 Level II BASIC: a learning guide
Introduction to TI BASIC (for the TI-99/4 and TI-99/4A)
Vic Basic

comments:

I remember variants on this for several platforms by the authors:

Don Inman, Ramon Zamora, Bob Albrecht.

TRS-80: https://www.amazon.com/Advanced-TRS-80-Level-II-BASIC/dp/047...

TI-99/4a: https://www.amazon.com/Introduction-TI-BASIC-TI-99-4A/dp/081...

Visual basic for dos: https://www.amazon.com/Visual-MS-DOS-Prentice-Innovative-Tec...

VIC-20: https://www.amazon.com/Vic-BASIC-User-Friendly-Guide/dp/0835...

Here is the full TRS-80 text: https://archive.org/details/trs-80-level-ii-basic-a-self-tea...

Who were these guys? They were all over the map.